Auto-format after save doesn't work correctly on files opened after load

I'm using Sublime build 4113, under linux (Lubuntu 18.04)

I've customized https://github.com/microsoft/TypeScript-Sublime-Plugin/blob/master/typescript/libs/editor_client.py#L110 by adding these options:

        format_options = {
            "tabSize": self.tab_size,
            "indentSize": self.indent_size,
            "convertTabsToSpaces": self.translate_tab_to_spaces,
            "insertSpaceAfterFunctionKeywordForAnonymousFunctions": True,
            "typescript.format.InsertSpaceAfterFunctionKeywordForAnonymousFunctions": True,
            "javascript.format.InsertSpaceAfterFunctionKeywordForAnonymousFunctions": True
        }

If I open a file modify it and save, the formatting works but doesn't respect these settings, so it'll format like this:

const fn = function(arg) { }

but then, if I close and reopen Sublime Text modify the file and save again, the formatting works correctly

const fn = function (arg) { }

Is there something I'm doing wrong? I know it's maybe hacky the way I modified my ~/.config/sublime-text-3/Packages/TypeScript/typescript/libs/editor_client.py setting directly

Start with typescript/libs/editor_client.py around line 110 and reproduce the formatting difference between a newly opened file and one reopened after restarting Sublime Text. Trace when the format options are initialized or applied, and consider the issue done when the configured spacing is respected on the first save without restarting the editor.